Press-box.



G. M. WALL.

PRESS BOX.

APPLICATION TILED APR. 12, 913.,

Patented Aug. 25

fV E.

wmvzssss THE NORRI$ PETERS C0,. PHOTO-LITHQ, WASHINGTOI V, D. C.

U TED STATES PATENT orrion.

CHARLES M. WALL, OF CURWENSVILLE, PENNSYLVANIA, ASSIGNOR OF ONE-HALF T0 JAMES A. BICKFORD, OF CURWENSVILLE, PENNSYLVANIA.

PRESS-BOX.

To all whom it may concern:

Be it known that 1, CHARLES M. WALL, citizen of the United States, residing at Ourwensville, in the county of Clearfield and State of Pennsylvania, have invented new and usefulTmprovements in Press-Boxes, of which the following is a. specification.

My present invention pertains to press boxes such as are used in the manufacture of brick,etc.

The object of my invention is to provide a press box of 'such' construction that a single exterior casting may be used for the pressing of bricks, etc. of various sizes and 1.; apes within certain limits. Thus a certai 11 size of exterior casting may be used for a series of different sizes of bricks, a larger exterior casting may be used for a series of larger different-size bricks, and a smaller exterior casting may be used for a series of smaller different size bricks. In this way a few exterior castings may be made to serve the purpose of a larger number of exterior castings as used in the manner now in vogue, and this will be appreciated as an important advantage when it is stated that the said exterior castings are the most expensive part of a press box.

With the foregoing in mind the invention will be fully understood from the following description and claims, when the same are read in connection with the drawings, accompanying and forming part of this specification, in which:

Figure 1 is a vertical transverse section of a press box embodying my invention. Fig. 2 is a plan of the same. Fig. ,3 is a detail elevation of one end portion of one of the side liners comprised in the box and showing the notch in the end of the said side liner registered with the groove in the end of the adjacent end liner, asone method of holding same in place. Fig. 4: is a detail view, partly in plan and partly in horizontal section, the sectional part being taken in the plane indicated by the line 4- of Fig. 3. Fig. 5 is a fragmentary section of the box illustrating a modification hereinafter specifically referred to.

Referring by numeral to the said drawings, and more particularly to Figs. 1 to i thereof: 1 is the exterior member or cast ing of the box, and 2 is a lining arranged in and permanently connected to the exterior casting. The said lining 2 is preferably of Specification of Letters Patent. I

Application filed April 12, 1913.

definite extent.

Patented Au 25, 1914.

Serial No. 760,781.

steel, though it may be of any other material consonant with the purpose of my .invention, without involving departure from the scope of the invention as claimed. Interiorly the said lining 2 is slightly tapered downwardly and inwardly, as clearly appears in Fig. 1.

Arranged within the lining 2 and spaced therefrom and extending, by preference, above the casting 1 and the said lining 2, are side liners 3 and end liners 1. These liners 3 and l are simply smooth plates, preferably of steel, which are of even thickness throughout and are the same on both sides and have ends which are identical in construction with each other. From this it follows that both sides of the liners are adapted to be presented to the bricks to be pressed, andthat each liner is susceptible of being reversed and used upside down. This is materially advantageous inasmuchas it'prolongs the usefulness of the liners S3 ands tov an in- It will also be noted that the liners being smooth and of even thickness throughout, can be inexpensively pro- 'duced.

Formed in the ends of one pair of liners, referably the side liners-3, and midway between the upper and lower edges of said liners, are notches 5, Figs. 3 and 4, and formed in the edges of the other pair of liners, preferably the liners at, and at points midway between the lower and upper edges thereof, are grooves 6 which are opposed to and arranged in communication with the notches 5. The said notches 5 and the grooves 6 areemployed in order to enable the Babbitt metal or other poured or plastic filler employed to occupy the said notches and grooves, and in that way key one pair of liners to the other pair of liners. In this connection it will be understood that the plastic filler will serve the purpose stated by occupying the notches and entering the grooves opposed to the open sides of the notches. Y

The filler I employ is indicated by 7, and is preferably formed by Babbitt metal or other poured metal or alloy of metals, though it might be formed of plastic material suitable to the purpose. The said filler fully occupies the spaces between the lining 2 and the liners 3 and t, and supports and backs and retains solidly in position the said liners 3 and 4. As will be observed by ferent sizes may be pressed in the same exterior casting 1. I would also have it understood that bricks of different shapes and different sizes may be also pressed in the same exterior casting 1; it being simply nee-- essary to employ and place liners 3 and 4 appropriate to the shape and size of the brick to be pressed in the lined casting 1, and then place a filler 7 so as to fully occupy the spacesbetween the said liners 3 and 4 and the lining 2 'of the casting 1. For instance in Fig. 2, the side liners 3 are indi-' cated by dotted lines as inclined inwardly toward oneend of the box for the pressing of a key brick. When the side liners 3 are so arranged a shorter end liner' l is employed at one end of the inclosure formed by the liners, and aiiller 7 is placed to fully occupy the spaces between all of the liners and the lining 2 of the exterior casting 1. W hen it is desired topress in the box a curved brick, curvilinear side liners are sub stituted for the straight side liners3, and.

appropriate end liners are employed be tween the ends of the said curvilinear side liners in the same manner that the end liners 4E are'arranged between the side liners 3, as shown in Fig. 2.

In all cases when the tiller 7 is placed about the side, and end liners, and between the said liners, and the lining 2 of the casting 1, it will be observed that by occupying the notches 5 and the complementary grooves 6, the filler will serve to key and hold the side liners and end liners together in proper relation, and in such manner that there is no liability of any liner being casually displaced incidental to the repeated use of the press box.

In Fig. 5, I have shown the lining 2 of the exterior casting or member 1 as formed of a poured plastic material, cement, for instance.

WVhile I prefer to provide the exterior casting or member 1 with a lining such as 2 or 2, I do not desire to be understood as 1. A press box comprising an exterior 3 member, pairs of liners disposed in the exterior member and spaced from the interior thereof; one pair of said liners having notches in their'ends and the'other pair of liners having grooves in their ends registered with the notches of thefirst-named pair, and a filler occupying the spaces be tween the interior of the exterior member and the'outer sides of the liners and'also o'ccupying the notches and the complementary grooves of the liners, andsecuring said liners together and in position. I

2. A press box, comprising an exterior member, pairs of liners disposed in the exterior member and spaced from the interior thereof; all of the said liners being smooth at their opposite side and of even thickness throughout, and one pair of liners having notches in their ends midway between their upper and lower edges and the other pair of liners having grooves in their ends midway between their upper and lower edges and registered with the notches of the first named pair, and a filler occupying the spaces between the interior of the exterior member and the outer sides of the liners and also occupying the notches and the complementary grooves of the liners, and securing said liners together and in position.

3. A press box, comprising an exterior member, a lining permanently arranged in the exterior member and having an interior that is tapered downwardly and inwardly, liners disposed in the exterior member and spaced from the said; lining thereof, and a poured filler occupying the spaces between the said lining and the outer sides of the liners, and securing said liners together and in position.

In testimony whereof I havehereunto set my hand in presence of two subscribing W113:

nesses.

CHARLES M. WALL.

Witnesses: i

ESTHER SHEARER, '1. R. JoHNsoN. I

Copies of this patent may be obtained for'five cents each, by addressing the Commissioner of Iatents,

Washington, I). C. 

